WO2002013957A1 - Evaporative humidifier - Google Patents

Evaporative humidifier

Info

Publication number
WO2002013957A1
WO2002013957A1 PCT/US2001/022066 US0122066W WO2002013957A1 WO 2002013957 A1 WO2002013957 A1 WO 2002013957A1 US 0122066 W US0122066 W US 0122066W WO 2002013957 A1 WO2002013957 A1 WO 2002013957A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
water
wall
tray
tank
assembly
Prior art date
Application number
PCT/US2001/022066
Other languages
French (fr)
Inventor
Patrick T. Mulvaney
Michael E. Smith
Anthony V. Cruz
Original Assignee
Hamilton Beach/Proctor-Silex, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00Air-humidification, e.g. cooling by humidification
    • F24F6/02Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • F24F6/043Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements with self-sucking action, e.g. wicks
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00Gas and liquid contact apparatus
    • Y10S261/65Vaporizers

Abstract

An evaporative humidifier (10) includes a base (12) removably supporting a water tray (34) for holding a quantity of water. A blower assembly (14) and a water tank (16) are removably supported by the base (12) above the water tray (34). The blower assembly (14) includes a housing (88) and a fan (119) disposed intermediate a pair of air inlets (100,102) and an air exhaust outlet (106). A cylindrically shaped wick filter (176) is supported by the water tray (34) and extends upwardly into the housing (88). The fan (119) is driven by a motor mounted inside the housing (88) for drawing air into the housing (88) through the air inlets (100,102), through the cylindrical side walls of the wick (176), and then through the exhaust outlet (106).

Description

EVAPORATIVE HUMIDIFIER

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates generally to humidifiers and, more particularly, to evaporative humidifiers utilizing a wick filter. The present invention is further directed to an evaporative humidifier having a structure to facilitate the transporting and cleaning of components which contact water.

2. Description of the Related Art

Various types of humidifiers are utilized to provide moisture to indoor air and thereby modify relative humidity. Included among such humidifiers are ultrasonic humidifiers, steam humidifiers or vaporizers, and evaporative humidifiers. Evaporative humidifiers typically include a housing having a reservoir of water and a stationary wick assembly supported within the housing. The reservoir is usually provided in fluid communication with a water tank for providing an extended supply of water. The lower end of the wick assembly is positioned within the reservoir to absorb water contained therein. Air is blown through the wick assembly, thereby causing evaporation of the water from the wick assembly and subsequent transfer of the evaporated water to the ambient air. If a stationary wick is utilized, the level of water within the reservoir should remain relatively constant to provide for both continuous absorption of water by the wick assembly and sufficient air flow therethrough. An example of such a conventional humidifier is disclosed in U.S. Patent No. 5,110,511.

It is also known to provide a float assembly within the water reservoir for deactivating the humidifier when the water level within the water reservoir is deficient. A typical float assembly includes a float and a rod extending upwardly from the float. The float rod has traditionally been supported by a stationary retainer, fixed either to the inside of the humidifier housing or to a wick support frame. When the water level within the reservoir is sufficient, the upper end of the float rod closes an activation switch and the humidifier operates. As the water level falls, the float rod descends, until the rod no longer closes the activation switch, at which point the humidifier is deactivated. An example of such a prior art float assembly is disclosed in U.S. Patent No. 5,945,038.

As may be appreciated, the tank, reservoir, and float assemblies. of conventional evaporative humidifiers are often in prolonged contact with water. Furthermore, the traditional humidifier is designed for operation in a moist, warm environment. As such, these conditions tend to foster the growth of microorganisms which adhere to components which contact water and which may be unpleasant and potentially harmful to individuals in proximity to the operating humidifier. In order to effectively clean traditional humidifiers, standard procedures include flushing the humidifier with a cleaning agent, such as chlorine bleach or a combination of vinegar and water, followed by a clean water flush. Unfortunately, such prior art cleaning procedures are often time consuming and therefore not routinely performed by the ordinary consumer. As such, it may be appreciated that there remains a need for an evaporative humidifier having a simple design wherein the components which contact water may be easily disassembled and removed for cleaning. More particularly, there remains a need for such an evaporative humidifier which includes components which may be easily removed, disassembled and cleaned within a conventional dishwasher.

A further disadvantage of prior art evaporative humidifiers is with respect to difficulties in filling and transporting the water tank. Such tanks are often cumbersome and difficult to carry, particularly after they are filled with water. While improvements have been proposed with respect to handles for carrying such humidifier tanks, as in U.S. Patent No. 5,483,616, there remains a need for a simple and effective design which facilitates the transporting of humidifier tanks.

SUMMARY OF THE INVENTION The evaporative humidifier of the present invention includes a base having a bottom wall and a side support wall extending upwardly from the bottom wall. A water tray supporting recess is formed within the bottom wall of the base and removably supports a water tray. The base is substantially elliptical and defines a longitudinal major axis and a transverse minor axis. The water tray supporting recess of the base includes a footprint asymmetrical relative to the transverse minor axis. The water tray includes a bottom wall and a side wall extending upwardly therefrom. The water tray further includes a footprint substantially conforming to the footprint of the water tray supporting recess of the base.

A float assembly is supported by the water tray and includes a cover removably secured to the side wall of the water tray. A buoyant float is slidably received within the cover and includes an upper end vertically moveable relative to the bottom wall of the water tray.

A blower assembly is supported by the side wall of the base above the water tray and includes a housing, a motor supported within the housing, and a fan supported within the housing and operably connected to the motor. A float switch is selectively engagable with the upper end of the buoyant float for selectively deactivating the motor. The housing includes an air inlet, an air outlet, and an evaporative air flow path extending between the air inlet and the air outlet.

A self-standing wick assembly is supported by the bottom wall of the water tray and extends upwardly into the air flow path within the housing. The wick assembly includes a wick filter having a cylindrical side wall, an open lower end, and an open upper end, wherein the lower end is in absorbing contact with water supported in the water tray. A cylindrical wick assembly locator extends upwardly from the bottom wall of the water tray, and the lower end of the wick filter is concentrically received over the wick assembly locator.

A tank is removably supported by the side wall of the base above the water tray and adjacent the blower assembly. The tank includes a concave side wall, a convex side wall, a bottom wall and a top wall. The concave side wall is concaved inwardly to provide clearance for the leg of a user carrying the tank. A valve is concentrically positioned relative to an aperture formed in the bottom wall of the tank. A valve actuator extends upwardly from the bottom wall of the water tray and is engagable with the valve for providing fluid communication between an interior chamber of the tank and the water tray. The valve is supported within a cap which selectively seals the aperture of the bottom wall of the tank. The aperture within the bottom wall of the tank is sized to have a diameter large enough, preferably at least as great as approximately 3.5 inches, to permit the hand of a user access to the interior chamber of the tank. A handle is supported by the top wall of the tank and includes a support portion positioned opposite a center axis of the tank from the concave side wall wherein the handle defines a pivot point. As such, supporting the tank from the handle causes the concave side wall to swing about the handle in a direction upwardly and toward the convex side wall, thereby providing additional clearance for movement of the leg of the user holding the tank. A recess is formed within the top wall of the tank proximate the convex side wall. An upper portion of the handle is supported above the recess and is substantially flush with the top wall of the tank.

The water tray, float assembly and tank are formed of a dishwasher safe thermoplastic material. Additionally, the water tray, float assembly and tank are a first color, wherein the base, which is not formed entirely of a dishwasher safe thermoplastic material, is a second color visibly distinguishable from the first color. As such, the dishwashable components of the first color are easily identifiable. Therefore, it is an object of the present invention to provide an evaporative humidifier having components in contact with water which may be easily removed and disassembled to facilitate cleaning.

It is another object of the present invention to provide such an evaporative humidifier having a water tray, float assembly, and tank which may be easily removed and disassembled from each other and from a base, blower assembly and wick assembly. It is a further object of the present invention to provide such an evaporative humidifier having a water tray, float assembly, and tank which may be cleaned within a conventional dishwasher.

It is yet another object of the present invention to provide an evaporative humidifier having a base with an asymmetrical water tray supporting recess to facilitate proper seating of a water tray therein.

It is a further object of the present invention to provide a water tray having a wick assembly locator to facilitate proper positioning of a wick assembly thereon.

It is still yet another object of the present invention to provide such a water tray having a handle extending upwardly from the wick assembly locator to facilitate removal of the water tray from the base.

It is a further object of the present invention to provide a humidifier including a tank having a structure facilitating its transportation.

It is another object of the present invention to provide such a tank including a concave side wall which provides clearance for the leg of a user carrying the tank.

It is further object of the present invention to provide such a tank including a handle defining a pivot point for swinging the concave side wall upwardly and outwardly away from the leg of a user carrying the tank.

Other objects and advantages of the invention will be apparent from the following description, the accompanying drawings and the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view as seen from the top, front and right side of an evaporative humidifier that embodies the present invention; Fig. 2 is an exploded perspective view of the evaporative humidifier of the present invention;

Fig. 3 is a left side elevational view of the evaporative humidifier of the present invention;

Fig. 4 is a right side elevational view of the evaporative humidifier of the present invention;

Fig. 5 is a top plan view of the base;

Fig. 6 is a top plan view of the evaporative humidifier of the present invention;

Fig. 7 is a front side elevational view of the evaporative humidifier of the present invention;

Fig. 8 is a rear side elevational view of the evaporative humidifier of the present invention;

Fig. 9 is a partial cross-sectional view taken along line 9-9 of Fig. 1 ;

Fig. 10 is a perspective view as seen from the bottom and rear of the blower assembly; Fig. 11 is a block diagram illustrating the interconnection between various electrical components in a preferred embodiment of the evaporative humidifier of the present invention;

Fig. 12 is a partial exploded perspective view as seen from the bottom of the tank; and Fig. 13 is a cross-sectional view taken along line 13-13 of Fig. 12.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Referring initially to Figs. 1-5, an evaporative humidifier 10 embodying the invention is illustrated as including a base 12 removably supporting a humidification unit or blower assembly 14 and a water tank 16. The base 12 includes a bottom wall 18 supported by a plurality of legs 19, and a side support wall 20 extending upwardly from a periphery of the bottom wall 18. A pair of opposing recessed handles 21 and 22 are preferably formed within the lower end of the side support wall 20 to facilitate handling of the humidifier 10. As illustrated in Fig. 5, the base 12 is substantially elliptical and includes a longitudinal major axis 23 and a transverse minor axis 24.

Referring now to Figs. 2, 5 and 9, a water tray supporting recess 26 projects downwardly within the bottom wall 18. The water tray supporting recess 26 includes interconnected first, second and third sections 28. 30 and 32, and a footprint 33 which is asymmetrical relative to the transverse minor axis 24 (Fig. 5). Moreover, the footprint of the first section 28 differs substantially from the footprint of the second and third sections 30 and 32. Additionally, the first section 28 is positioned above the second section 30, which, in turn, is positioned above the third section 32, thereby providing a downward gradient from the first section 28 to the second and third sections 30 and 32.

A water tray 34 is removably supported within the water tray supporting recess 26 of the base 12 and is adapted for receiving and holding a supply of water. The water tray 34 includes a bottom wall 36 and a side wall 38 extending upwardly from the periphery of the bottom wall 36. The footprint 39 of the water tray 34 substantially conforms to the footprint 33 of the water tray supporting recess 26 of the base 12. Moreover, the footprint 39 of the water tray 34 is received in substantially parallel relation within the footprint 33 of the bottom wall 36.

The water tray 34 further includes a water receiving portion 40 in fluid communication with an evaporative portion 42. A float reservoir 44 is provided in fluid communication with the evaporative portion 42. The water receiving portion 40, evaporate portion 42 and float reservoir 44 are received within the first section 28. second section 30. and third section 32. respectively, of the water tray supporting recess 26. Given the asymmetrical structure of the water tray supporting recess 26 and the water tray 34, it may be appreciated that the water tray 34 is properly receivable within the water tray supporting recess 26 in only one position. The bottom wall 36 within the evaporative portion 42 is positioned below the bottom wall 36 within the water receiving portion 40. Additionally, the bottom wall 36 within the float reservoir 44 is positioned below the bottom wall 46 within the evaporative portion 42. As such, water within the water tray 34 tends to travel in a direction from the water receiving portion 40 to the float reservoir 44. A portion of the side wall 38 opposite the float reservoir 44 includes an inclined portion or spout 46 to facilitate pouring of water from the tray 34.

Turning now to Figs. 1, 2 and 9, the float assembly 48 is removably supported by the water tray 34 and includes a cover 58 releasably secured to the side wall 38. Moreover, the cover 58 includes a base 60 defining a slot 62 for frictionally engaging a portion of the side wall 38. The cover 58 further includes a centrally positioned aperture 64 for slidably receiving and guiding a buoyant float 66 including an vertically extending switch actuator 68. The buoyant float 66 is supported within the float reservoir 44. In the preferred embodiment, the vertically extending switch actuator 68 is formed as an integral part of the buoyant float 66. Regardless of the construction, at least the buoyant float 66 is made of a buoyant material. As may be readily appreciated, the buoyant float 66 and the vertically extending switch actuator 68 are vertically moveable relative to the bottom wall 36 of the water tray 34 in response to changing levels of water within the float reservoir 44.

A lower end 70 of the vertically extending switch actuator 68 is supported by the buoyant float 66. while the upper end 72 of the vertically extending switch actuator 68 includes a tapered switch engaging blade 74. A retaining ring 76 is supported proximate the upper end 72 of the vertically extending switch actuator 68 and is engagable with a pair of retaining clips 78 and 80 fixed to an upper surface 82 of the cover 58 proximate the aperture 64. The retaining clip 78 and 80 are preferably secured using traditional fasteners, such as screws 84 and 86, although other fastening means may be readily substituted therefore. It should be appreciated that the interaction between the retaining ring 76 and the retaining clips 78 and 80 maintains the cover 58. buoyant float 66 and vertically extending switch actuator 68 together as a single float assembly 48, while providing limited relative movement between the cover 58 and the vertically extending switch actuator 68. Referring now to Figs. 1 -4, 6 and 10, the blower assembly 14 comprises a housing 88 including arcuate front and rear walls 90 and 92 interconnecting opposing first and second side walls 94 and 96, and further defining an open bottom 97. A top wall 98 interconnects the front and rear walls 90 and 92 along with the first and second side walls 94 and 96. First and second air inlets 100 and 102 are formed within the first and second side walls 94 and 96 and preferably include inlet grilles 103 and 104 having a plurality of substantially horizontally extending slots 105 extending therethrough. Likewise, an air exhaust outlet 106 is formed within the top wall 98 and includes a grille 108 defining a plurality of slots 110. The air inlets 100 and 102 and air exhaust outlet 106 provide communication to an evaporative air flow path 112 (Fig. 9).

The blower assembly 14 is removably supported by the base 12 above the water tray 34. More particularly, a recessed flange 113 extends around the lower peripheral edge of the housing 88 for supporting the housing 88 by a lip 114 formed in the side support wall 20 of the base 12. A plurality of positioning tabs 115 extend upwardly from the bottom wall 18 of the base 12 and adjacent the side support wall 20 for securely positioning the housing 88. Referring to Figs. 6, 9 and 10. a fan enclosure 116 is supported within the housing 88 and includes a cylindrical wall 1 17 extending downwardly from the top wall 98. A conventional motor 1 18 is supported by the cylindrical wall 1 17 and is operably connected to a fan 119. The fan 1 19 includes a plurality of blades 120 for propelling air upwardly from the open bottom 97 of the housing 88 and out through the air exhaust outlet 106. A guard 122 is fixed to a lower surface of the fan enclosure 1 16 and includes a safety grille 124 for preventing accidental contact with the motor 1 18 and the fan blades 120. Additionally, the guard 122 supports an arcuate receiving shield 126 including a plurality of air flow passages 127 extending concentrically downwardly from the cylindrical wall 117.

Referring now to Figs. 1, 6 and 1 1, a control panel 130 is supported by the top wall 98 of the housing 88 intermediate the front wall 90 and the air exhaust outlet 106. The control panel 130 includes a display 132, preferably a liquid crystal display, for providing an indication of the relative humidity of ambient air received from a humidity sensor 134 communicating with a processor 136. An inlet 137 is provided in the control panel 130 to provide fluid communication between the humidity sensor 134 and ambient air. The display 132 further provides an indication of a set or desired relative humidity which may be programmed by a user through desired humidity set point up and down set point buttons 138 and 140. A rotatable fan speed control knob 142 is provided to control operation of the fan 119 by varying the desired speed of the motor 11 .

The humidity sensor 134 is of conventional design and senses ambient air relative humidity through the inlet 137 formed within the control panel 130. The humidity sensor 134 is in a continuous active condition and sends signals to the processor 136 whenever the processor 136 is energized. Additionally, a power indicator lamp 146 and a refill indicator lamp 148 are supported within the control panel 130 and controlled by the processor 136. More particularly, the power indicator lamp 146 illuminates when the motor 118 is activated. Likewise, the refill indicator lamp 148 illuminates when an activation or float switch 150 is in an open state as described below.

Referring further to Figs. 9 and 10, the housing 88 of the blower assembly 14 supports the float switch 150 which communicates with the processor 136 for either allowing or preventing the supply of power to the motor 118. The float switch 150 is of conventional design and preferably includes a spring biased lever arm 152 that creates an electrical contact when depressed and breaks the contact when not depressed. Consequently, when the lever arm 152 is depressed, the float switch 150 sends a signal to the processor 136 for activating the motor 118. Likewise, when the lever arm 152 is not depressed, the float switch 150 sends a signal to the processor 136 for deactivating the motor 118. The float switch 150 is supported within a control housing 154 adjacent to the fan enclosure 1 15. The control housing 154 includes a bottom wall 156 including tapered converging surfaces 158 leading to a slot 160. The lever arm 152 is positioned inside the control housing 154 adjacent the slot 160.

The switch engaging blade 74 of the upper end 72 of the vertically extending switch actuator 68 is selectively engagable with the lever arm 152 through the slot 160. The control housing 154 also contains the processor 136 which, as indicated above, is in electrical communication with the humidity sensor 134, set point buttons 138 and 140, control knob 142, power indicator lamp 146 and refill indicator lamp 148.

Referring now to Figs. 8 and 10, the rear wall 92 of the housing 88 includes a cord storage compartment 162 for receiving an excess amount of electrical cord 164. The electrical cord 164 is of conventional design and includes a plug 165 for providing electrical power to the motor 116. The storage compartment 162 extends inwardly from the rear wall 92 and includes first and second vertically extending side walls 166 and 167 interconnected by an intermediate wall 168. The second side wall 167 includes an arcuate portion 169 defined by an outer surface of the cylindrical wall 117 of the fan enclosure 116. First and second retaining tabs 170 and 171 are provided for securing the excess cord 164 within the compartment 162. A passageway 172 is provided within the rear wall 92 and provides communication between the storage compartment 162 and an outer surface 173 of the housing 88. A recessed handle 174 is also provided in the rear wall 92 of the housing 88 to facilitate handling of the blower assembly 14 by a user. As may be appreciated by viewing Figs. 8 and 10, the excess cord 164 is hidden from view by the water tank 16 when the humidifier 10 is in its normal operating condition with the blower assembly 14 positioned adjacent the tank 16 on the base 12.

Turning now to Figs. 2 and 9, a wick assembly 175 is supported by the bottom wall 36 of the water tray 34. The wick assembly 175 includes a wick filter 176 and a permeable support 178 which permits the wick assembly 175 to be self-standing. The wick filter 176 is preferably cylindrical in shape and includes a side wall 180, an open top 182 and an open bottom 184. The wick assembly 175 is preferably concentrically received over a cylindrical wick assembly locator 186 supported by and extending upwardly from the bottom wall 36 of the water tray 34. As such, the bottom 184 of the wick filter 176 is in contact with water supported by the bottom wall 36 of the water tray 34. The wick assembly 175 extends upwardly into the air flow path 112 defined by the housing 88 of the blower assembly 14. The top 182 of the wick assembly 175 is received within and appropriately aligned with the fan 118 by the receiving shield 126. A carrying handle 188 extends upwardly from the wick assembly locator 186 to facilitate removal and transportation of the water tray 34.

The preferred permeable support 178 extends around the outer cylindrical side wall 180 of the wick filter 176. The permeable support 178 is preferably comprised of expanded mesh of solid material, preferably a resin coated cotton/cellulose material. The wick filter 176 preferably consists of an expanded cotton/cellulose material, such as that manufactured by Columbus Industries. More particularly, the wick assembly 175 may have a structure similar to the that disclosed in U.S. Patent No. 5,800,741, which is incorporated herein by reference. Referring now to Figs. 1-4, 6, 8 and 12-13, the water tank 16 includes a concave first side wall 190, a convex second side wall 192, a top wall 194 and a bottom wall 196, thereby defining an interior chamber 198. The concave side wall 190 is curved in a direction toward the convex side wall 192, while the convex side wall 192 is curved in a direction away from the concave side wall 190. An aperture 200 is formed within the bottom wall 196 of the tank 16. A tubular projection 202, including an annular flange 204, extends downwardly from the bottom wall 196 and is concentrically disposed around the aperture 200. The aperture 200 is sized to have a diameter large enough to provide adequate access by the hand of a user to the interior chamber 198. In the preferred embodiment, the diameter of the aperture is at least as great as approximately 3.5 inches and is selected based upon ergonomic considerations for permitting a large percentage of users access with a hand to the interior chamber 198 of the tank 16. It may be further appreciated that the large aperture 200 further facilitates filling of the tank 16.

A cap 206 is removably and sealingly supported by tubular projection 202. A gasket 208 is received within the annular flange 204 for sealingly engaging a lip 210 supported by the cap 206. A plurality of radially inwardly extending first locking tabs 212 are supported by the tubular projection 202. A plurality of cooperating second locking tabs 214, having inclined ramp surfaces 216, extend radially outwardly from a side wall 217 of the cap 206. The inclined ramp surfaces 216 formed on the cap 206 force the lip 210 into sealing and locking engagement with the flange 204 through the gasket 208 as the cap 202 is rotated by approximately 90 degrees.

The cap 206 concentrically supports a valve 218 including a plunger 219, a valve seal 220, and a compression spring 222. The cap 206 further comprises a horizontal circular bottom wall 224 and a discharge opening 226 formed therein. The valve plunger 219 is loosely received through the discharge opening 226 to allow for axial movement of the plunger 219 relative to the cap 206. The valve seal 220 is attached to an upper end of the plunger 219. The spring 222 is compressed between the cap 206 and a disc 228 supported on the lower end of the plunger 210 to bias the seal 220 toward the discharge opening 226. The tubular projection 202 preferably extends below the disc 228 for preventing accidental opening of the valve 218 of the tank 16 should the bottom wall 196 be supported on a flat surface.

A valve actuator 230, preferably in the form of a cylindrical protrusion, extends upwardly from the bottom wall 36 of the water tray 34 and is aligned with the disc 228 of the valve 218. As such, when the water tank 16 is positioned on the side wall 70 of the base 12, above the water tray 34, the protrusion 230 forces the valve 218 into an open position by forcing the seal 220 away from the opening 226 and thereby allowing water to flow from the interior chamber 198 into the water receiving portion 40 of the water tray 34.

A plurality of cylindrical locating pegs 232, 234 and 236 extend downwardly from the bottom wall 196 of the tank 16 and are receivable within cylindrical recesses 238, 240 and 242 extending downwardly within the bottom wall 18 of the base 12 for properly positioning the tank 16. A recessed flange 244 extends around the periphery of the bottom wall 196 proximate the convex side wall 192 and engages the side wall 20 of the base 12 for locating and supporting the tank 16.

A vertically extending center axis 246 passes through the center of gravity of the tank 16. A handle 248, including a support portion 249, is positioned above a recess 250 formed within the top wall 194 of the tank 16. The top wall 194 of the tank 16 is substantially flush with the support portion 249 thereby defining a substantially planar surface allowing the tank 16 to be supported in an inverted position by the top wall 194. The support portion 249 of the handle is supported on the side of the center axis 246 proximate the convex side wall 192 wherein the handle 248 defines a pivot point. The support portion 249 is adapted to be grasped by the user transporting the tank 16. By positioning the support portion 249 of the handle 248 on the side of the axis 246 opposite the concave side wall 190, supporting the tank 16 by the handle 248 causes the concave side wall 190 to swing or pivot about the handle 248 in a direction upwardly and toward the convex side wall 192. It may be readily appreciated that the concave side wall 190 provides clearance for the leg of a user carrying the tank 16, while the positioning of the handle 248 facilitates movement of the concave side wall 190 away from the leg of the user. In the preferred embodiment of the humidifier 10 of the present invention, the water tray 34, float assembly 48, water tank 16 and cap 206 are each made of a dishwasher safe material, such as molded thermoplastic. In the most preferred embodiment, these components are each molded from a polycarbonate material which is then annealed to substantially remove residual stresses resulting from the molding process. Further, the water tray 34, float assembly 48, water tank 16 and cap 206 are preferably made a first color, such as transparent smoke. The housing 88 of the blower assembly 14 and the base 12, which are not entirely composed of dishwasher safe materials, are made a second color, such as opaque ivory, which is visibly distinguishable from the first color. As such, the user may easily identify those components which are dishwashable. Next, the operation of the humidifier 10 will be described in greater detail. Prior to initiating operation of the humidifier 10, the wick assembly 175 is inspected and replaced, if necessary. Installing a new wick assembly 175 involves simply removing the blower assembly 14 from the base 12, removing the old wick assembly 175 from the water tray 34, and placing the new wick assembly 175 concentrically over the wick assembly locator 186. The housing 88 is then repositioned over the wick assembly 175, wherein the top 182 of the wick filter 176 is received within the receiving shield 126 proximate the fan 119.

The user then removes the tank 16 from the base 12 by simply lifting up on the handle 248. The tank 16 is inverted and the cap 206 rotated in a first direction by approximately 90 degrees wherein the first locking tabs 212 disengage the second locking tabs 214. The cap 206 may then be pulled in an axial direction away from the bottom wall 196 of the tank 16, exposing the aperture 200. The tank 16 is then supplied with water from an appropriate water source, such as the faucet at a sink, by passing water through the aperture 200. The cap 206 is next axially aligned with the aperture 200 and rotated in a second direction by approximately 90 degrees, wherein cooperation between the ramp surfaces 216 and the first locking tabs 212 cause locking and sealing engagement between the lip 210 and flange 204 through the gasket 208.

The tank 16 is returned to the humidifier 10 by preferably carrying it by the handle 248. The concave side wall 190 provides clearance for the leg of the user, while the positioning of the support portion 249 of the handle 248 relative to the center axis 246 causes the concave side wall 190 to pivot in a direction upwardly and toward the convex side wall 192, thereby swinging the tank 16 away from the leg of the user. The tank 16 is then inverted and repositioned on the side wall 20 of the base 12 above the water tray 34.

With the tank 16 properly positioned by the locating pegs 232, 234 and 236 and peripheral flange 244. the valve actuator 230 in the water tray 34 pushes the valve plunger 219 upwardly to move the seal 220 away from the discharge opening 226 of the cap 206. Water then flows from the tank 16 through the discharge opening 226 into the water receiving portion 40 of the water tray 34. As water escapes from the tank 16, air simultaneously enters the tank 16 through the discharge opening 226. The water level rises within the water tray 34 until reaching the level of the bottom wall 224 of the cap 206. At that time, water seals the air path into the tank 16 and prevents further discharge of water therefrom.

Water in the water receiving portion 40 of the water tray 34 flows to the lower evaporative portion 42 and float reservoir 44 due to the gradient therebetween. Water within the evaporative portion 42 is absorbed by a lower portion 184 of the wick filter 176 and drawn by capillary action upward into an upper portion 182 thereof. The water contained in the upper end 182 of the wick filter 176 is positioned within the air flow path 112. More particularly, air driven by the fan 118 passes from the air inlets 100 and 102 and through the side wall 180 of the wick filter 176 thereby accelerating the evaporation of the water within the wick filter 176. The humidified air is then forced out through the open upper end 182 of the wick filter 176 and out through the air exhaust outlet 106, thereby causing the desired humidification effect. As water is depleted from the water tray 34, the water level attempts to fall but exposes the bottom wall 224 of the cap 206 to allow air to enter the tank 16 and thereby permitting water to escape therefrom. In this respect, the water level in the water tray 34 is self regulating in that it is maintained at its normal operating level until such time as the tank's water supply has been substantially depleted. Power is supplied to the processor 136, display 132 and humidity sensor 134 as soon as an electrical connection is established with the power cord 164. The humidity sensor 134 continuously detects the ambient air relative humidity and supplies a measured humidity signal indicative thereof to the processor 136. The processor then converts the signal to an appropriate reading within the display 132. Activation of the motor 118 driving the fan 119 is established by turning the motor control knob 142 from an off position to a desired fan speed position, thereby applying supply voltage to the motor 118. At this point, the processor 136 activates the power indicator lamp 146. A desired or set relative humidity is established by depressing the set point up and set point down buttons 138 and 140 until the desired relative humidity is indicated on the display 132. In the preferred embodiment, the set point up and set point down buttons 138 and 140 increment the set point relative humidity by five percent increments. Once the processor 136 determines that the measured humidity signal as supplied from the humidity sensor 134 equals the set point relative humidity, it deactivates the motor 118. When the processor 136 receives a measured humidity signal a predetermined number of percentage points below the set point relative humidity, it then reactivates the motor 118. In the preferred embodiment the predetermined number of percentage points equals two.

In response to changes in the level of water within the water tray 34, the buoyant float 66 and vertically extending switch actuator 68 move in a vertical direction as guided by the cover 58 supported on the side wall 38. When the level of the water within the water tray 34 is at a predetermined sufficient level, the switch engaging blade 74 of the vertically extending switch actuator 68 is moved into an activating position for depressing the lever arm 152 of the float switch 150 into its active closed position. The processor 136 observes this condition and thereby allows operation of the motor 118.

However, when the water level within the water tray 34 falls below the predetermined sufficient level, the buoyant float 66 and vertically extending switch actuator 68 move downwardly wherein the blade 74 of the elongated member 68 disengages the lever arm 152 of the float switch 150. The switch 150 is thereby returned to its inactive open condition, which again is observed by the processor 136. Further, separation of the blower assembly 14 from the float assembly 48 will cause disengagement of the lever arm 152 and return of the float switch 150 to its inactive open condition. When the processor 136 observes the float switch 150 in its open position, it activates the refill indicator lamp 148 and deactivates the motor 116. When routine cleaning of the water contacting components is required, the blower assembly 14 and tank 16 are simply removed from the supporting base 12. The cap 206 is next removed from the bottom wall 196 of the tank 16. The wick assembly 175 is then removed from the water tray 34 and replaced, if required. The float assembly 48 is easily removed from the water tray 34 by disengaging the cover 58 from the side wall 38. Next, the water tray 34 is lifted by its handle 188 upwardly and away from the base. The tank 16, including removed cap 206, along with the float assembly 48 and water tray 34 are then preferably placed within a conventional dishwasher for cleaning. As noted above, these dishwashable components are easily identified by the color distinction from other components of the humidifier 10. While the form of apparatus herein described constitutes a preferred embodiment of this invention, it is to be understood that the invention is not limited to this precise form of apparatus, and that changes may be made therein without departing from the scope of the invention which is defined in the appended claims. What is claimed is:

Claims

1. An evaporative humidifier comprising: a base including a bottom wall, said bottom wall having a water tray supporting recess; a water tray including a bottom wall and a side wall extending upwardly from said bottom wall, said water tray removably supported within said water tray supporting recess of said bottom wall of said base; a blower assembly removably supported by said base, said blower assembly including a housing, a motor supported within said housing, and a fan supported within said housing and operably connected to said motor, said housing including an air inlet, an air outlet and an evaporative air flow path extending between said air inlet and said air outlet; a wick assembly supported by said bottom wall of said water tray and extending upwardly into said air flow path within said housing; and a tank removably supported by said base above said water tray, said tank including first and second side walls, a bottom wall and an aperture, said tank defining an interior chamber in fluid communication with said water tray.
2. The evaporative humidifier of claim 1 wherein: said base defines a transverse minor axis; said water tray supporting recess of said base defines a footprint asymmetrical relative to said transverse minor axis; and said water tray defines a footprint substantially conforming to said footprint of said water tray supporting recess.
3. The evaporative humidifier of claim 1 wherein said water tray includes an evaporative portion positioned below said blower assembly and a water receiving portion positioned below said tank, said bottom wall within said evaporative section positioned below said bottom wall within said water receiving portion.
4. The evaporative humidifier of claim 1 further comprising: a plurality of cylindrical recesses formed within said bottom wall of said base; and a plurality of cylindrical locating pegs extending downwardly from said bottom wall of said tank and receivable within said cylindrical recesses of said base.
5. The evaporative humidifier of claim 1 further comprising a plurality of positioning tabs extending upwardly from said bottom wall of said base for securely positioning said housing of said blower assembly.
6. The evaporative humidifier of claim 1 wherein said wick assembly includes a wick filter having a cylindrical side wall, an open lower end and an open upper end, said lower end adapted for adsorbing water supported in said water tray.
7. The evaporative humidifier of claim 6 further comprising a wick assembly locator extending upwardly from said bottom wall of said water tray wherein said lower end of said wick filter is receivable over said wick assembly locator.
8. The evaporative humidifier of claim 7 further comprising a handle supported by said wick assembly locator.
9. The evaporative humidifier of claim 6 wherein said blower assembly further includes a fan enclosure including a substantially cylindrical side wall concentrically received about said fan and separating said air inlet from said air outlet, thereby defining said air flow path.
10. The evaporative humidifier of claim 9 further comprising an arcuate receiving shield supported by said fan enclosing wall and receiving said upper end of said wick filter.
11. The evaporative humidifier of claim 1 further comprising: a valve received within said aperture of said tank; and a valve actuator extending upwardly from said bottom wall of said water tray and engagable with said valve.
12. The evaporative humidifier of claim 1 further comprising: a float assembly supported by said water tray, said float assembly including a buoyant float oveable relative to said bottom wall of said water tray; and a float switch selectively activating said motor in response to movement of said buoyant float.
13. The evaporative humidifier of claim 12 further comprising a float reservoir in fluid communication with said tank and formed by said side wall of said water tray, said buoyant float supported for substantially vertical movement within said float reservoir.
14. The evaporative humidifier of claim 13 wherein said float assembly further includes a cover slidably receiving said buoyant float and releasably secured to said water tray.
15. The evaporative humidifier of claim 14 wherein said float assembly further comprises a retaining clip supported by said cover for slidably securing said buoyant float to said cover.
16. The evaporative humidifier of claim 1 further comprising: an electrical cord in electrical communication with said motor; and a cord storage compartment formed within said housing for receiving an excess portion of said electrical cord.
1 . The evaporative humidifier of claim 16 further comprising at least one retaining tab supported by said housing for retaining said electrical cord within said cord storage compartment.
18. The humidifier of claim 16 further comprising a handle recess formed within said housing.
19. The evaporative humidifier of claim 1 wherein said water tray and said tank are formed of a dishwasher safe thermoplastic material.
20. The evaporative humidifier of claim 19 wherein: said water tray and said tank are a first color; and said base is a second color, said second color visibly distinguishable from said first color.
21. The evaporative humidifier of claim 1 further comprising a processor, a humidity sensor operably connected to said processor for detecting ambient air relative humidity and providing a signal representative of said ambient air relative humidity, and a display operably connected to said processor for providing a visible indication of said ambient air relative humidity at any time power is supplied to said processor.
22. The evaporative humidifier of claim 21 further comprising at least one control button in communication with said processor for establishing a set relative humidity, and wherein said processor selectively controls operation of said motor in response to said set relative humidity and said signal representative of said ambient air relative humidity.
23. A humidifier comprising: a base adapted to support a supply of water; a blower assembly supported by said base, said blower assembly including a housing, a motor supported within said housing, and a fan supported within said housing and operably connected to said motor, said housing including an air inlet, an air outlet and an evaporative air flow path extending between said air inlet and said air outlet; and a tank removably supported by said base and defining an interior chamber, said tank including first and second side walls, a bottom wall including an aperture, and a cap removably supported for sealing said aperture of said bottom wall, wherein said aperture formed within said bottom wall has a diameter at least as great as approximately 3.5 inches.
24. The humidifier of claim 23 further comprising a plurality of locking tabs supported proximate said aperture of said bottom wall and a plurality of cooperating ramp surfaces supported by said cap and cooperating with said locking tabs for sealingly securing said cap relative to said bottom wall.
25. A humidifier comprising: a base adapted to support a supply of water; a humidification unit supported by said base; and a tank removably supported by said base and defining a center axis and an interior chamber in fluid communication with said water tray, said tank including a concave side wall and a convex side wall, a top wall, a bottom wall, and a handle supported by said top wall and positioned adjacent said convex side wall wherein said handle defines a pivot point for causing said concave side wall to swing about said handle in a direction upwardly and toward said convex side wall.
26. The humidifier of claim 25 wherein said handle includes a support portion positioned intermediate said center axis and said convex side wall.
27. The humidifier of claim 26 further comprising a recess formed within said top wall of said tank proximate said convex side wall and wherein said handle is supported substantially flush with said top wall of said tank.
28. The humidifier of claim 26 wherein said humidification unit comprises a blower assembly including a housing, a motor supported within said housing, and a fan supported within said housing and operably connected to said motor, said housing including an air inlet, an air outlet and an evaporative air flow path extending between said air inlet and said air outlet.
29. The humidifier of claim 28 further comprising a wick assembly extending upwardly into said air flow path within said housing.
30. A humidifier comprising: a base; a humidification unit supported by said base, said humidification unit including a housing having opposing front and rear walls; an electrical cord in electrical communication with said humidification unit; a tank supported by said base and including opposing first and second side walls, said first side wall of said tank positioned adjacent said rear wall of said humidification unit; and wherein said housing of said humidification unit includes a cord storage compartment extending inwardly within said rear wall for receiving an excess portion of said electrical cord.
31. The humidifier of claim 30 wherein said first side wall of said tank covers said cord storage compartment when said tank is positioned on said base.
32. The humidifier of claim 30 further comprising at least one retaining tab supported by said rear wall of said housing for retaining said electrical cord within said cord storage compartment.
33. The humidifier of claim 30 further comprising a cord passage formed within said rear wall of said housing and extending from said cord storage compartment to an outside surface of said housing.
34. An humidifier comprising: a base including a bottom wall; a water tray including a bottom wall and a side wall extending upwardly from said bottom wall, said water tray removably supported by said bottom wall of said base; a humidification unit including a housing supported by said base; and a tank removably supported by said base, said tank including side and bottom walls and an interior chamber in fluid communication with said water tray; wherein said water tray and said tank are formed of a dishwasher safe thermoplastic material.
35. The humidifier of claim 34 wherein: said water tray and said tank are a first color; and said base is a second color, said second color visibly distinguishable from said first color.
36. The humidifier of claim 34 further comprising a float assembly supported by said water tray, said float assembly including a buoyant float movable relative to said bottom wall of said water tray.
37. The humidifier of claim 36 wherein said float assembly is formed of a dishwasher safe thermoplastic material.
38. The humidifier of claim 37 wherein: said water tray, said float assembly and said tank are a first color; and said base is a second color, said second color visibly distinguishable from said first color.
PCT/US2001/022066 2000-08-11 2001-07-13 Evaporative humidifier WO2002013957A1 (en)

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US09637484 US6427984B1 (en) 2000-08-11 2000-08-11 Evaporative humidifier

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JP2002519089A JP2004511744A (en) 2000-08-11 2001-07-13 Evaporative humidifier
GB0302300A GB2383277B (en) 2000-08-11 2001-07-13 Evaporative humidifier
CA 2419014 CA2419014A1 (en) 2000-08-11 2001-07-13 Evaporative humidifier

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CN (1) CN1227057C (en)
CA (1) CA2419014A1 (en)
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WO (1) WO2002013957A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103785315A (en) * 2014-02-28 2014-05-14 常州大学 Pipeline type humidifying system

Families Citing this family (96)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6427984B1 (en) * 2000-08-11 2002-08-06 Hamilton Beach/Proctor-Silex, Inc. Evaporative humidifier
US6550748B2 (en) * 2001-05-29 2003-04-22 Emerson Electric Co. Dry out mechanism for humidifier
US6796550B2 (en) * 2001-08-14 2004-09-28 Hamilton Beach/Proctor-Silex, Inc. Humidifier filter servicing and water level indicator
US20030067086A1 (en) * 2001-10-09 2003-04-10 Hamilton Beach/Proctor-Silex, Inc. Disposable tray liner for humidifiers
US20040163184A1 (en) * 2002-12-09 2004-08-26 Royal Appliance Mfg. Clothes de-wrinkler and deodorizer
US6945519B2 (en) * 2003-09-25 2005-09-20 Sunbeam Products, Inc. Microorganism-resistant humidifier
KR101130401B1 (en) * 2004-08-16 2012-03-27 엘지전자 주식회사 A blower inner cover of a dish washer
CN100431474C (en) 2005-06-29 2008-11-12 乐金电子(天津)电器有限公司 Inner cover structure for steam outlet of dish washer
CN101495813B (en) * 2006-03-16 2011-06-15 动力工业有限公司 Device for distributing volatile fluids in air
US8074645B2 (en) 2006-04-10 2011-12-13 Somnetics Global Pte. Ltd. Apparatus and methods for providing humidity in respiratory therapy
US8365726B2 (en) * 2007-06-07 2013-02-05 Resmed Limited Tub for humidifier
CN100593424C (en) * 2007-07-18 2010-03-10 北京万生药业有限责任公司 Apparatus for humidifying and conveying oxygen
GB0814866D0 (en) 2007-09-04 2008-09-17 Dyson Technology Ltd A fan
US20100258958A1 (en) * 2007-09-18 2010-10-14 Raymond Industrial Limited Humidifier
US8296993B2 (en) * 2007-11-16 2012-10-30 Monster Mosquito Systems, Llc Ultrasonic humidifier for repelling insects
GB2463698B (en) 2008-09-23 2010-12-01 Dyson Technology Ltd A fan
GB0819612D0 (en) 2008-10-25 2008-12-03 Dyson Technology Ltd A fan
US8453640B2 (en) * 2008-11-12 2013-06-04 Resmed Limited Positive airway pressure device
GB0903680D0 (en) 2009-03-04 2009-04-15 Dyson Technology Ltd A fan
EP2276933B1 (en) 2009-03-04 2011-06-08 Dyson Technology Limited A fan
GB0903668D0 (en) 2009-03-04 2009-04-15 Dyson Technology Ltd A fan
GB2476172B (en) 2009-03-04 2011-11-16 Dyson Technology Ltd Tilting fan stand
GB0903670D0 (en) 2009-03-04 2009-04-15 Dyson Technology Ltd A fan
EP2265825B1 (en) 2009-03-04 2011-06-08 Dyson Technology Limited A fan assembly
GB0903682D0 (en) 2009-03-04 2009-04-15 Dyson Technology Ltd A fan
CA2746554C (en) 2009-03-04 2016-08-09 Dyson Technology Limited A fan
GB2468320C (en) 2009-03-04 2011-06-01 Dyson Technology Ltd Tilting fan
GB0903686D0 (en) 2009-03-04 2009-04-15 Dyson Technology Ltd A fan
ES2437740T3 (en) 2009-03-04 2014-01-14 Dyson Technology Limited humidifying device
GB0903693D0 (en) 2009-03-04 2009-04-15 Dyson Technology Ltd A Fan
GB2468331B (en) 2009-03-04 2011-02-16 Dyson Technology Ltd A fan
GB0903665D0 (en) 2009-03-04 2009-04-15 Dyson Technology Ltd A fan
GB0919473D0 (en) 2009-11-06 2009-12-23 Dyson Technology Ltd A fan
US8347909B2 (en) * 2009-11-11 2013-01-08 Carefusion 2200, Inc. Float valve system for a respiratory humidification system
GB201004812D0 (en) 2010-03-23 2010-05-05 Dyson Technology Ltd An accessory for a fan
GB2478927B (en) 2010-03-23 2016-09-14 Dyson Technology Ltd Portable fan with filter unit
GB2493672B (en) 2010-05-27 2013-07-10 Dyson Technology Ltd Device for blowing air by means of a nozzle assembly
JP5434834B2 (en) * 2010-07-21 2014-03-05 パナソニック株式会社 Small humidifier
GB201013265D0 (en) 2010-08-06 2010-09-22 Dyson Technology Ltd A fan assembly
GB201013263D0 (en) 2010-08-06 2010-09-22 Dyson Technology Ltd A fan assembly
GB201013266D0 (en) 2010-08-06 2010-09-22 Dyson Technology Ltd A fan assembly
GB2483448B (en) 2010-09-07 2015-12-02 Dyson Technology Ltd A fan
JP5810261B2 (en) * 2010-10-05 2015-11-11 パナソニックIpマネジメント株式会社 Humidifying device
DK2630373T3 (en) 2010-10-18 2017-04-10 Dyson Technology Ltd Fan unit
GB2484670B (en) 2010-10-18 2018-04-25 Dyson Tech Limited A fan assembly
US9926804B2 (en) 2010-11-02 2018-03-27 Dyson Technology Limited Fan assembly
GB2486019B (en) 2010-12-02 2013-02-20 Dyson Technology Ltd A fan
JP5496135B2 (en) 2011-03-25 2014-05-21 日立建機株式会社 Hydraulic working machine hydraulic system
KR101595869B1 (en) 2011-07-27 2016-02-19 다이슨 테크놀러지 리미티드 A fan assembly
GB2493506B (en) 2011-07-27 2013-09-11 Dyson Technology Ltd A fan assembly
GB201119500D0 (en) 2011-11-11 2011-12-21 Dyson Technology Ltd A fan assembly
US9423141B2 (en) * 2011-12-01 2016-08-23 Sunbeam Products, Inc. Console humidifier
GB2498547B (en) 2012-01-19 2015-02-18 Dyson Technology Ltd A fan
GB201202000D0 (en) 2012-02-06 2012-03-21 Dyson Technology Ltd A fan assembly
GB2499044B (en) 2012-02-06 2014-03-19 Dyson Technology Ltd A fan
GB201201997D0 (en) 2012-02-06 2012-03-21 Dyson Technology Ltd A fan
GB2500010B (en) 2012-03-06 2016-08-24 Dyson Technology Ltd A humidifying apparatus
GB2500005B (en) 2012-03-06 2014-08-27 Dyson Technology Ltd A method of generating a humid air flow
GB2500011B (en) 2012-03-06 2016-07-06 Dyson Technology Ltd A Humidifying Apparatus
CA2866146A1 (en) 2012-03-06 2013-09-12 Dyson Technology Limited A fan assembly
GB2501301B (en) 2012-04-19 2016-02-03 Dyson Technology Ltd A fan assembly
GB2502104B (en) 2012-05-16 2016-01-27 Dyson Technology Ltd A fan
GB2518935B (en) 2012-05-16 2016-01-27 Dyson Technology Ltd A fan
EP2867589A1 (en) * 2012-06-28 2015-05-06 Koninklijke Philips N.V. Evaporative humidifier and indoor climate controlling system comprising the same
GB2503907B (en) 2012-07-11 2014-05-28 Dyson Technology Ltd A fan assembly
US8701701B2 (en) * 2012-09-25 2014-04-22 Chin-Cheng Huang Float switch of a humidifier
CA152015S (en) 2013-01-18 2014-06-27 Dyson Technology Ltd Humidifier
CA152014S (en) 2013-01-18 2014-06-27 Dyson Technology Ltd Humidifier
USD749231S1 (en) 2013-01-18 2016-02-09 Dyson Technology Limited Humidifier
CA152016S (en) 2013-01-18 2014-06-27 Dyson Technology Ltd Humidifier
GB2510195B (en) 2013-01-29 2016-04-27 Dyson Technology Ltd A fan assembly
CA152656S (en) 2013-03-07 2014-05-20 Dyson Technology Ltd Fan
USD729372S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
CA152658S (en) 2013-03-07 2014-05-20 Dyson Technology Ltd Fan
CA152655S (en) 2013-03-07 2014-05-20 Dyson Technology Ltd Fan
USD729375S1 (en) 2013-03-07 2015-05-12 Dyson Technology Limited Fan
CA152657S (en) 2013-03-07 2014-05-20 Dyson Technology Ltd Fan
GB2530906B (en) 2013-07-09 2017-05-10 Dyson Technology Ltd A fan assembly
CA154722S (en) 2013-08-01 2015-02-16 Dyson Technology Ltd Fan
USD728769S1 (en) 2013-08-01 2015-05-05 Dyson Technology Limited Fan
CA154723S (en) 2013-08-01 2015-02-16 Dyson Technology Ltd Fan
GB2518638B (en) 2013-09-26 2016-10-12 Dyson Technology Ltd Humidifying apparatus
KR20150047253A (en) * 2013-10-24 2015-05-04 엘지전자 주식회사 Humidifier
USD746967S1 (en) * 2013-12-18 2016-01-05 Samsung Electronics Co., Ltd. Steam cleaner
US9440240B2 (en) 2014-03-21 2016-09-13 Brookstone Purchasing, Inc. Combined ionic air filter and humidifier apparatus
CN104315696B (en) * 2014-07-03 2017-10-13 青岛海尔空调器有限总公司 An air handling system
GB201413423D0 (en) 2014-07-29 2014-09-10 Dyson Technology Ltd Humidifying apparatus
GB2528709B (en) 2014-07-29 2017-02-08 Dyson Technology Ltd Humidifying apparatus
JP2016038103A (en) * 2014-08-05 2016-03-22 パナソニックIpマネジメント株式会社 Humidifier
USD790050S1 (en) * 2014-12-26 2017-06-20 Samsung Electronics Co., Ltd Air purifier
CN104566743B (en) * 2014-12-31 2018-03-16 广东美的制冷设备有限公司 Vertical air cleaner humidified air cleaner structure and the vertical
USD787036S1 (en) * 2015-02-13 2017-05-16 Samsung Electronics Co., Ltd. Bucket for dehumidifier
USD791925S1 (en) * 2015-07-13 2017-07-11 Samsung Electronics Co., Ltd Water box for dehumidifier
CN205014534U (en) * 2015-09-15 2016-02-03 深圳市联创科技集团有限公司 Drum -type water evaporation carrier air conditioning equipment
CN105485818A (en) * 2015-12-31 2016-04-13 广东美的制冷设备有限公司 Combined shell structure of air sterilization humidifier and air sterilization humidifier
CN105664373A (en) * 2016-03-16 2016-06-15 福州品行科技发展有限公司 Far infrared eye kneading device and using method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4906417A (en) * 1988-02-08 1990-03-06 Associated Mills Inc. Humidifier
US5108663A (en) * 1990-04-17 1992-04-28 Duracraft Corporation Humidifier with float activated water level responsive turn off
US5250232A (en) * 1990-10-17 1993-10-05 Bemis Manufacturing Company Humidifier
US5483616A (en) * 1994-12-21 1996-01-09 Duracraft Corporation Humidifier tank with improved handle
US5611967A (en) * 1995-11-20 1997-03-18 Duracraft Corporatiion Combination evaporative/warm mist humidifier

Family Cites Families (99)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US580071A (en) * 1897-04-06 Rail-joint
US31116A (en) * 1861-01-15 Mode op believing steam-cylinders of water of condensation
US35153A (en) * 1862-05-06 Improvement in explosive projectiles
US310116A (en) 1884-12-30 beale
US1625663A (en) 1926-06-16 1927-04-19 Charles F Keistler Humidifier
US2054200A (en) 1933-03-27 1936-09-15 George W Langford Air conditioning apparatus
US2032634A (en) 1933-05-03 1936-03-03 Hugh G Ross Humidifier
US2211407A (en) 1938-11-03 1940-08-13 Mayflower Lewis Corp Portable vaporizer
US2244792A (en) 1940-07-19 1941-06-10 Daniel E Shaw Humidifier
US2424268A (en) 1944-04-15 1947-07-22 Richard Delano Inc Humidifier
US2508530A (en) 1945-01-03 1950-05-23 George S Morris Humidifier
US2680914A (en) 1953-02-05 1954-06-15 Maytag Co Control means for clothes driers or the like
US2730340A (en) 1953-02-12 1956-01-10 Patriarca Domenico Humidifier
US2752134A (en) 1954-06-01 1956-06-26 Wright Mfg Co Evaporative automobile cooler
US2774581A (en) 1954-10-25 1956-12-18 Marvin W Bowersox Evaporative cooler
US2998714A (en) 1960-02-15 1961-09-05 G & B Mfg Co Inc Portable car and beverage cooler
US3045450A (en) 1960-03-30 1962-07-24 Edward F Chandler Air treating and cooling device
US3290021A (en) 1963-11-29 1966-12-06 Oster Mfg Co John Portable humidifier
US3323784A (en) 1964-11-05 1967-06-06 Peter A Fazio Humidifier with throw-away reservoir
US3252820A (en) * 1964-12-23 1966-05-24 Baker Castor Oil Co Rheological agent for organo-base systems
US3253820A (en) 1965-04-15 1966-05-31 Cory Corp Humidifier
US3322405A (en) 1965-09-01 1967-05-30 Mc Graw Edison Co Humidifier
US3730500A (en) 1969-06-19 1973-05-01 Fluid Device Corp Liquid level control system and carbonator
US3598370A (en) 1969-07-14 1971-08-10 Mc Graw Edison Co Humidifier
US3637194A (en) 1969-12-22 1972-01-25 Berns Air King Corp Humidifier
DE2012273A1 (en) 1970-03-14 1971-10-14 Tamm W
US3811661A (en) 1972-05-22 1974-05-21 J Procter Humidifying apparatus
US4051205A (en) 1972-09-13 1977-09-27 Graham Cameron Grant Apparatus for saturated gas delivery
US3914349A (en) 1973-04-23 1975-10-21 Sunbeam Corp Portable humidifier
US3852380A (en) 1973-05-24 1974-12-03 Westinghouse Electric Corp Water level indicator and control
US4028444A (en) 1974-03-25 1977-06-07 Chemetron Corporation Humidifier and automatic control system therefor
US4056582A (en) 1974-12-30 1977-11-01 Beatrice Foods Co. Humidifier assembly
US3990848A (en) 1975-04-10 1976-11-09 The Risdon Manufacturing Company System for inducing air flow past a gel type product
US4045523A (en) 1975-06-09 1977-08-30 Goettl Adam D Evaporative cooler with superimposed disposable pad assemblies
US4127620A (en) 1977-07-18 1978-11-28 Canadian Appliance Manufacturing Company Limited Integral water fill system for humidifiers
US4169261A (en) 1978-05-08 1979-09-25 Alpaugh F Nelson Liquid level sensing apparatus
DE2837132C3 (en) 1978-08-25 1981-04-09 Heinz Georg Thun Ch Baus
US4225542A (en) 1978-12-12 1980-09-30 Minnesota Mining And Manufacturing Company Evaporative humidifier
US4234526A (en) 1979-01-09 1980-11-18 Mcgraw-Edison Company Evaporative cooler
US4192832A (en) 1979-01-29 1980-03-11 Goettl Adam D Automatic flushing and draining reservoir apparatus for evaporative coolers
US4361522A (en) 1981-08-27 1982-11-30 Goettl Adam D Automatic flushing and draining apparatus for evaporative coolers
US4333887A (en) 1979-01-29 1982-06-08 Goettl Adam D Automatic flushing and draining apparatus for evaporative coolers
US4289713A (en) 1979-01-29 1981-09-15 Goettl Adam D Automatic flushing and draining reservoir apparatus for evaporative coolers
US4286751A (en) 1979-03-19 1981-09-01 Research Products Corp. Humidifier control
DE2929706C2 (en) 1979-07-21 1982-09-30 Draegerwerk Ag, 2400 Luebeck, De
US4428207A (en) 1981-10-09 1984-01-31 Martin Industries, Inc. Dehumidifier
US4480469A (en) 1982-10-25 1984-11-06 Transamerica Delaval Inc. Adjustable differential fluid level float indicator
JPS59119126A (en) 1982-12-24 1984-07-10 Toshiba Corp Humidifier
US4753758A (en) 1983-05-19 1988-06-28 Intertech Resources Inc. Respiratory humidifier
US4576013A (en) 1984-03-22 1986-03-18 Charles J. Sperr Evaporative cooling
JPH0328243Y2 (en) 1984-04-02 1991-06-18
DE3617304A1 (en) 1986-04-21 1987-10-22 Plaston Ag evaporative humidifier
US4822533A (en) 1986-12-11 1989-04-18 Emerson Electric Co. Humidifier with floating wick assembly and replaceable wick elements
US4853161A (en) 1987-10-27 1989-08-01 Han Chi Hang Co., Ltd. Auto turning-off humidifier
US4820453A (en) 1987-11-17 1989-04-11 Huang Chuang Pang Water level detector and circuit for an electric humidifier
US4839014A (en) 1987-12-16 1989-06-13 Park Sea C Cleaner assembly, humidifier, gas alarm and detoxification system
US4932218A (en) 1988-10-24 1990-06-12 Robbins Maurice A Automatic control for evaporative coolers and the like
US5014338A (en) 1988-12-21 1991-05-07 Glucksman Dov Z Portable air humidifier
US5111529A (en) 1988-12-21 1992-05-05 Glucksman Dov Z Portable air humidifier
US5015420A (en) 1989-12-26 1991-05-14 Jones Tom F Evaporative cooling
US5061405A (en) 1990-02-12 1991-10-29 Emerson Electric Co. Constant humidity evaporative wicking filter humidifier
US5037586A (en) 1990-04-09 1991-08-06 Mehrholz John E Universally mounted humidifier
USRE35153E (en) 1990-04-17 1996-02-06 Duracraft Corporation Humidifier with float activated water level responsive turn off
US5037583A (en) 1990-04-23 1991-08-06 Bemis Manufacturing Company Humidifier
US5110511A (en) 1990-06-29 1992-05-05 Bemis Manufacturing Company Humidifier
CA2044023A1 (en) 1990-10-17 1992-04-18 Kenneth V. Pepper Humidifier
US5210818A (en) 1990-12-10 1993-05-11 Duracraft Corporation Leak proof humidifier
US5143655A (en) 1991-07-08 1992-09-01 Duracraft Corporation Efficiently packaged humidifier device
US5143656A (en) 1991-10-28 1992-09-01 Duracraft Corporation Humidifier with a tamper proof liquid level responsive shut-off
US5373841A (en) 1992-02-04 1994-12-20 Kyllonen; David M. Self-operated nasal humidifier
US5231979A (en) 1992-02-14 1993-08-03 Puritan-Bennett Corporation Humidifier for CPAP device
US5252260A (en) 1992-05-14 1993-10-12 Research Products Corporation Humidifier electrical control assembly
DE4228771A1 (en) 1992-08-28 1994-03-03 Bosch Siemens Hausgeraete Device for enriching water with CO¶2¶ gas to produce carbonated water
US5374380A (en) 1992-12-23 1994-12-20 F F Seely Nominees Pty Ltd. Salinity control of sump water using conductivity probes
US5397510A (en) 1993-05-24 1995-03-14 Toastmaster Inc. Control system for humidifiers
US5427137A (en) 1993-12-15 1995-06-27 Bowen; James H. Fluid shut off valve and fill level indication
US5527157A (en) 1994-01-28 1996-06-18 Phoenix Manufacturing, Inc. Evaporative coller pump apparatus
US5529726A (en) 1994-04-04 1996-06-25 Holmes Products Corp. Evaporative humidifier
US5800741A (en) 1994-04-04 1998-09-01 Holmes Products Corp. Evaporative humidifier having wick filter with color change indicator
US5578113A (en) 1994-07-19 1996-11-26 Holmes Product Corp. Air treatment system
DE19534001B4 (en) 1994-09-20 2006-05-18 Fisher & Paykel, East Tamaki humidification chamber
US5490957A (en) 1994-09-28 1996-02-13 Lasko; William E. Portable humidifier
US5514303A (en) 1995-01-17 1996-05-07 Duracraft Corporation Humidifier with removable suction tube
US5547615A (en) 1995-05-10 1996-08-20 Duracraft Corporation Portable humidifier with bacteriastat dispenser
US5573713A (en) 1995-06-06 1996-11-12 Emerson Electric Co. Humidifier having multi-stage fans
US5564415A (en) * 1995-06-07 1996-10-15 Lifecare International, Inc. Humidifier for a ventilator
US5945913A (en) 1995-12-26 1999-08-31 Gallagher; Daniel J. Liquid level alarm system
US5610591A (en) 1995-12-26 1997-03-11 Gallagher; Daniel J. Liquid level alarm system
US5833812A (en) 1996-02-21 1998-11-10 Hartman; Michael Orban Low maintenance water distiller
CA2204199A1 (en) 1996-05-02 1997-11-02 Rodney B. Burns Air humidifier with reduced mineral buildup
US5776380A (en) 1996-11-15 1998-07-07 Kem-Wove Incorporated Chemical and microbiological resistant evaporative cooler media and processes for making the same
US5783117A (en) 1997-01-09 1998-07-21 Hunter Fan Company Evaporative humidifier
US6053482A (en) 1997-01-31 2000-04-25 Holmes Products Corp. Humidifier including a water filtration device
US6000684A (en) 1997-06-24 1999-12-14 Research Products Corporation Evaporative wicking pad
US6237899B1 (en) * 1998-01-09 2001-05-29 Holmes Products Corp. Humidifier with wick change indicator
US6523810B2 (en) * 1998-01-09 2003-02-25 The Holmes Group, Inc. Modular performance indicator for a humidifier
US5967380A (en) 1998-06-05 1999-10-19 Lasko Holdings, Inc. Liquid reservoir tank
US5945038A (en) 1998-08-07 1999-08-31 Bemis Manufacturing Company Humidifier wick assembly with float rod retainer
US6427984B1 (en) * 2000-08-11 2002-08-06 Hamilton Beach/Proctor-Silex, Inc. Evaporative humidifier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4906417A (en) * 1988-02-08 1990-03-06 Associated Mills Inc. Humidifier
US5108663A (en) * 1990-04-17 1992-04-28 Duracraft Corporation Humidifier with float activated water level responsive turn off
US5250232A (en) * 1990-10-17 1993-10-05 Bemis Manufacturing Company Humidifier
US5483616A (en) * 1994-12-21 1996-01-09 Duracraft Corporation Humidifier tank with improved handle
US5611967A (en) * 1995-11-20 1997-03-18 Duracraft Corporatiion Combination evaporative/warm mist humidifier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HOLMES: "HM-3000 rapid mist humidifier-owner's guide", 20 November 1995 (1995-11-20), XP002947161 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103785315A (en) * 2014-02-28 2014-05-14 常州大学 Pipeline type humidifying system
CN103785315B (en) * 2014-02-28 2016-09-07 常州大学 A pipe humidification system

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US6604733B2 (en) 2003-08-12 grant
US20040012103A1 (en) 2004-01-22 application
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US6427984B1 (en) 2002-08-06 grant
GB0302300D0 (en) 2003-03-05 grant
CA2419014A1 (en) 2002-02-21 application
US20020180073A1 (en) 2002-12-05 application
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US6715739B2 (en) 2004-04-06 grant
JP2004511744A (en) 2004-04-15 application

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